One winter day ____, he saw the tracks of animals in the snow and observed that the appearance of each one was different.
#95095
A
while he hunting
B
while hunting
C
while he hunt
D
while hunted
推荐题目
He likes books ________ science because he wonders what and why our world is.
#96368
A
relating to
B
related to
C
connecting to
D
connected to
-I don’t mind        you what I know.-You       . I’m not asking you for it.
#96024
A
to tell; mustn’t
B
tell; may not
C
telling; needn’t
D
telling; can’t
The question is not easy _____.
#97945
A
to answer
B
to be answered
C
answered
D
answering